﻿#region LicenseHeader

// Copyright 2012 The Trustees of Indiana University.  All rights reserved.
// 
// The Indiana University licenses this file to you under the Apache License, 
// Version 2.0 (the "License"); you may not use this file except in compliance 
// with the License.  You may obtain a copy of the License at 
// 
// http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software 
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
// See the License for the specific language governing permissions and 
// limitations under the License.
// 
// @author Thilina Gunarathne (tgunarat@indiana.edu)

#endregion

#region

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using AzureMRCore;
using AzureMRCore.DataTypes;
using AzureMRCore.MapRed;

#endregion

namespace Cap3Sample
{
    internal class Cap3Mapper : Mapper<StringKey, StringValue, StringKey, StringValue, NullKey, NullValue>
    {
        protected override int Map(StringKey key, StringValue value, List<KeyValuePair<NullKey, NullValue>> dynamicData, IOutputCollector<StringKey, StringValue> outputCollector, string programArgs)
        {
            //Console.Out.WriteLine(inputFile + "   " + programArgs);
            string cmdArgs = string.Format(value + " " + " -p 95 -o 49 -t 100 "); // + " > " + tmpOutFile);

            Process process = new Process();
            ProcessStartInfo startInfo = process.StartInfo;
            startInfo.Arguments = cmdArgs;
            startInfo.FileName = Environment.CurrentDirectory + "\\Cap3\\Cap3Exec.exe";
            startInfo.WorkingDirectory = Path.GetDirectoryName(startInfo.FileName);

            //startInfo.RedirectStandardOutput = true;
            startInfo.UseShellExecute = false;
            startInfo.CreateNoWindow = true;
            //TODO : handle the error output
            startInfo.RedirectStandardError = false;
            startInfo.RedirectStandardOutput = true;

            process.Start();
            string output = process.StandardOutput.ReadToEnd();
            process.WaitForExit();

            int exitCode = process.ExitCode;

            outputCollector.Collect(StringKey.GetInstance(key.GetTextValue() + "out"), StringValue.GetInstance(output));

            return 0;
        }
    }
}